slide1 l.
Download
Skip this Video
Download Presentation
John L. Murray, Jr., CHMM, CSP, CIH Safety Director Occupational Health & Safety Baystate Health System Springfield

Loading in 2 Seconds...

play fullscreen
1 / 28

John L. Murray, Jr., CHMM, CSP, CIH Safety Director Occupational Health & Safety Baystate Health System Springfield - PowerPoint PPT Presentation


  • 130 Views
  • Uploaded on

“…and staff are complaining about allergies. They think it might be mold.”. John L. Murray, Jr., CHMM, CSP, CIH Safety Director Occupational Health & Safety Baystate Health System Springfield MA. “…and staff are complaining about allergies. They think It might be mold.”.

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'John L. Murray, Jr., CHMM, CSP, CIH Safety Director Occupational Health & Safety Baystate Health System Springfield ' - bill


Download Now An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
slide1

“…and staff are complaining

about allergies. They think

it might be mold.”

John L. Murray, Jr., CHMM, CSP, CIH

Safety Director

Occupational Health & Safety

Baystate Health System

Springfield MA

USDA Teleconference

slide2

“…and staff are complaining

about allergies. They think

It might be mold.”

Where to Start

  • Contraindications
  • Low relative humidity
  • No visible growth
  • Complaints of revolving
  • illness

USDA Teleconference

slide3

“…and staff are complaining

about allergies. They think

It might be mold.”

USDA Teleconference

slide4

“…and staff are complaining

about allergies. They think

It might be mold.”

Places to look

  • Baseboard
  • Wall paper paste/wall paper seams
  • Inside ventilation ducts
  • Inside wall cavities
  • Typically wet areas – e.g. window sills

USDA Teleconference

slide5

“…and staff are complaining

about allergies. They think

It might be mold.”

Sampling methods & analysis

  • Microscopic Analysis – Non-viable
  • Tape Samples
  • Spore Trap
  • Incubation – Viable Samples
  • Swab
  • Agar Plate
    • OPD – Open Plate Deposition
    • Active

USDA Teleconference

slide6

“…and staff are complaining

about allergies. They think

It might be mold.”

Microscopic Analysis

USDA Teleconference

slide7

“…and staff are complaining

about allergies. They think

It might be mold.”

Sampling Plan

Bioaerosol sampling

A minimum of four samples: Complaint Area, Non-complaint

Area, Outside and a blank.

Sampler is cleaned between plates with 91% isopropyl alcohol.

Samples are delivered to the lab for incubation and identification.

Reference: NIOSH Method 800 Bioaerosol Sampling

USDA Teleconference

slide8

“…and staff are complaining

about allergies. They think

It might be mold.”

Active viable sampler

SKC – Anderson N6

USDA Teleconference

slide9

“…and staff are complaining

about allergies. They think

It might be mold.”

USDA Teleconference

slide10

“…and staff are complaining

about allergies. They think

It might be mold.”

Incubated

Culture plate

USDA Teleconference

slide11

“…and staff are complaining

about allergies. They think

It might be mold.”

Weather Effects

  • Wind speed &
    • Direction
  • Temperature
  • Humidity

USDA Teleconference

slide12

“…and staff are complaining

about allergies. They think

It might be mold.”

Relations with Lab

Qualifications

Speciation

Media Choice

TSA, PDA, SDA, MEA…….

Data presentation

USDA Teleconference

slide13

“…and staff are complaining

about allergies. They think

It might be mold.”

Lab # Sample# Bulk Air Comments*****

USDA Teleconference

slide14

“…and staff are complaining

about allergies. They think

It might be mold.”

Lab Data Conversion

CFU/m3 = Colony Forming Units * 1000 liters

time in minutes * sample flow rate in liters/minute m3

For the previous page

18 CFU * 1000 l = 218 CFU/m3

3 min * 27.5 l/min m3

USDA Teleconference

slide15

“…and staff are complaining

about allergies. They think

It might be mold.”

Local Mycology Labs

USDA Teleconference

slide16

“…and staff are complaining

about allergies. They think

It might be mold.”

Case Study – Office Suite

USDA Teleconference

slide17

“…and staff are complaining

about allergies. They think

It might be mold.”

Collection Points

  • Break Room
  • Main Lobby
  • Office #1
  • Office #2
  • Office #3
  • Warehouse
  • Print Shop
  • Outside

USDA Teleconference

slide18

#8

#4

#3

#2

#1

#5

Sampling

Locations

#6

#7

USDA Teleconference

slide19

380NC1

Warehouse, Near Pick Area

754 CFU/m3

Penicilllium sp.,Cladosporium sp and Alternaria sp. isolated.

380NC2

Print Shop

273 CFU/m3

Penicilllium sp.,Cladosporium sp., Alternaria sp. and Streptomyces sp. isolated.

380-O1

Outside, NE corner of building

>2800 CFU/m3

Penicilllium sp.,Cladosporium sp., Alternaria sp. and Streptomyces sp. isolated.

380 Blank

Blank

No viable colonies isolated

“…and staff are complaining

about allergies. They think

It might be mold.”

Results – Background and Reference

USDA Teleconference

slide20

2800 CFU/M3

754CFU/M3

Air Flow

Patterns

273 CFU/M3

USDA Teleconference

slide21

380C1

Old Break Room

325 CFU/m3

Penicilllium sp.,Cladosporium sp., Alternaria sp. and Streptomyces sp. isolated.

380C2

Main Lobby

299 CFU/m3

Penicilllium sp.,Cladosporium sp and Alternaria sp. isolated.

380C3

Office #1

221 CFU/m3

Penicilllium sp., and Cladosporium sp.

380C4

Office #3

221 CFU/m3

Penicilllium sp.,Cladosporium sp and Alternaria sp.

380C5

Office #2

182 CFU/m3

Penicilllium sp., and Cladosporium sp

“…and staff are complaining

about allergies. They think

It might be mold.”

Results – Complaint Areas

USDA Teleconference

slide22

“…and staff are complaining

about allergies. They think

It might be mold.”

The Organisms

Penicillium is one of the most common molds found indoors.  Because it is so common, the source of it may not be easily identified.  It particularly likes to grow in basements on stored materials such as boxes, paper sacks, fabrics, gypsum board wall facings and cellulose ceiling tiles. Penicillium is one of the most common species found in house dust.  As such, a positive test for Penicillium in most cases carries no health significance with it. 

USDA Teleconference

slide23

Clinical Information

Clinical Information

Cladosporium

A genus of mold which can be found within indoor environments.

Cladosporium is the most common of the so-called black molds. It produces a black pigment that protects it from ultraviolet light. This characteristic as well as its growth and dispersal characteristics is likely responsible for its presence and abundance in the environment.

Cladosporium

A genus of mold which can be found within indoor environments.

Cladosporium is the most common of the so-called black molds. It produces a black pigment that protects it from ultraviolet light. This characteristic as well as its growth and dispersal characteristics is likely responsible for its presence and abundance in the environment.

“…and staff are complaining

about allergies. They think

It might be mold.”

The Organisms

Cladosporium is one of the most common mold species found in indoor and outdoor environments.  In most cases, outdoor concentrations are higher than those indoors. Cladosporium produces a black pigment so that when it grows on a surface it looks black.  Cladosporium, like all known mold species, can cause allergic sensitization in potentially sensitive individuals.  As such, it can cause chronic allergic rhinitis, asthma, and possibly fungal sinusitis.

Exposures to common molds like Cladosporium pose no unique health risks to a pregnant woman or her fetus.  It may pose a risk to an asthmatic individual if they have been sensitized to Cladosporium.

USDA Teleconference

slide24

“…and staff are complaining

about allergies. They think

It might be mold.”

The Organisms

Alternaria is a fungus commonly isolated from plants, soil, food, and indoor air environment. Alternaria is often found growing on carpets, textiles and horizontal surfaces such as window frames. It is known to be a common allergen. Alternaria is commonly found in water damaged buildings, and a significant increase in its numbers compared to outdoor levels can be a sign of growth. Although Alternaria is a source of allergic reactions, pathogenic infections are also reported infrequently.

USDA Teleconference

slide25

“…and staff are complaining

about allergies. They think

It might be mold.”

The Organisms

Streptomyces species are found worldwide in soil and are important in soil ecology. Much of the characteristic earthy smell of soils arises from chemicals given off by Streptomyces species. Streptomycetes are metabolically diverse and can "eat" almost anything, including sugars, alcohols, amino acids, organic acids, and aromatic compounds.  Few species ofare pathogenic for animals, although a few species cause plant diseases.

USDA Teleconference

slide26

“…and staff are complaining

about allergies. They think

It might be mold.”

Pitfalls

  • Did you ever catch snakes as a kid?
  • Post remediation standards

USDA Teleconference

slide27

“…and staff are complaining

about allergies. They think

It might be mold.”

Questions?

USDA Teleconference

slide28

“…and staff are complaining

about allergies. They think

It might be mold.”

Thank you

USDA Teleconference